Solutions, Molarity, Molality

Front

What is a solution?

Back

A homogeneous mixture composed of two or more substances, where a solute is dissolved in a solvent.

Front

What is molarity?

Back

Molarity (M) is a measure of concentration defined as the number of moles of solute per liter of solution.

Front

What is molality?

Back

Molality (m) is a measure of concentration defined as the number of moles of solute per kilogram of solvent.

Front

How can the concentration of a solution be increased?

Back

By adding more solute to the solution.

Front

What is a solute?

Back

The substance that is dissolved in a solution.

Front

What is a solvent?

Back

The substance that does the dissolving in a solution.

Front

What is a homogeneous solution?

Back

A mixture that has a uniform composition throughout, such as saltwater or apple juice.

Front

What is a polar molecule?

Back

A molecule with a partial positive charge on one side and a partial negative charge on the other, leading to an uneven distribution of charge.

Front

What is a nonpolar molecule?

Back

A molecule that has an even distribution of charge, resulting in no distinct positive or negative sides.

Front

What is the formula for calculating molarity?

Back

Molarity (M) = moles of solute / liters of solution.